@@ -569,13 +569,13 @@
                          *
                          * other files are passed through to the
                          * preprocessor, if present, or to gas if not.
                          */
                         filename = arg;
-                        if (arglen > 2 &&
-                            (strcmp(arg + arglen - 2, ".s") == 0) ||
-                            (strcmp(arg + arglen - 2, ".S") == 0)) {
+                        if ((arglen > 2) &&
+                            ((strcmp(arg + arglen - 2, ".s") == 0) ||
+                            (strcmp(arg + arglen - 2, ".S") == 0))) {
                                 /*
                                  * Though 'as' allows multiple assembler
                                  * files to be processed in one invocation
                                  * of the assembler, ON only processes one
                                  * file at a time, which makes things a lot